Hemorrhoids can have blood clusters, especially external hemorrhoids. External hemorrhoids are classified as inflammatory external hemorrhoids, connective tissue external hemorrhoids, varicose external hemorrhoids, and thrombosed external hemorrhoids. Varicose external hemorrhoids and thrombosed external hemorrhoids have noticeable blood clusters. Thrombosed external hemorrhoids are generally due to the rupture of the external hemorrhoidal veins bleeding, blood accumulates in the subcutaneous, over time thrombus formation, so the swelling. This type of hemorrhoid nucleus is composed of blood mass. Clinical manifestations are severe pain in the anal area and a dark purple swelling is visible. Varicose external hemorrhoids are varicose veins outside the hemorrhoids, expanding, stasis formation of soft masses, clinical manifestations to the anus foreign body sensation is mainly. Usually the swelling is not very obvious, when squatting or defecation, the swelling volume can be seen to become larger, dark purple, massage can make the lump shrink, usually not accompanied by pain. Perianal discomfort such as the above symptoms, it is recommended to go to the regular hospital in time, clear cause, as soon as possible to follow the doctor’s instructions to give reasonable standardized treatment.